package com.huang.add;

import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;

public class CyclicBarrierDemo {
    public static void main(String[] args)  {
        CyclicBarrier cyclicBarrier = new CyclicBarrier(7,()->{
            System.out.println("召唤神龙成功");
        });
        for (int i = 1; i <=7; i++) {
            final int temp=i;  // 高频问点   lamda表达式拿不到fou循环的i  lamda实际上是new 了一个类
            new Thread(()->{
                System.out.println("第"+temp+"条神龙");

                try {
                    cyclicBarrier.await();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } catch (BrokenBarrierException e) {
                    e.printStackTrace();
                }

            },String.valueOf(i).toString()).start();
        }


    }
}
